An electric vehicle heat pump air conditioning controller

Abstract

This utility model provides a heat pump air conditioning controller for electric vehicles, including a lower support groove and an upper cover. The lower support groove and the upper cover are fixed together by screws. A PCB board is fixedly installed in the lower half of the lower support groove by screws. A support ring is fixedly installed in the middle of the side wall of the lower support groove, and a heat dissipation grille is placed on top of the support ring. An air inlet is provided through the upper half of the lower support groove and communicates with the heat dissipation grille. A reinforcing component is provided at the center of the upper cover and is attached to the top of the heat dissipation grille. This utility model has the advantages of sealing and storing the PCB board while ensuring the heat dissipation effect of the PCB board.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, and in particular to a heat pump air conditioning controller for electric vehicles. Background Technology

[0002] The heat pump air conditioning controller is a core control component in the thermal management system of electric vehicles, responsible for regulating the operation of the air conditioning system to achieve efficient cooling and heating functions. The heat pump controller consists of three components: an instruction register, a program counter, and an operation controller. It is mainly used in air source heat pump water heaters, heating and cooling units, modular units, and thermal management systems for new energy vehicles.

[0003] Chinese patent CN221615380U, filed on December 18, 2023, discloses a car air conditioning heat pump controller with a sealing structure, relating to the field of heat pump controller technology. The controller includes a housing and a cover plate. Positioning rods are fixedly connected to the four corners of the housing. First positioning holes are fixedly opened at the four corners of the upper surface of the cover plate, each first positioning hole matching a corresponding positioning rod. A first sealing element is provided between the housing and the cover plate. Each positioning rod has a cavity inside, and a pressing mechanism is provided inside each cavity. A controller body is located inside the housing, with a control line at one end and a wire groove on one side of the housing. This invention, through the pressing mechanism located inside each cavity, allows the cover plate to move downwards as a whole after installation, making the cover plate, the first sealing element, and the housing more tightly connected, thereby improving the sealing effect of the first sealing element.

[0004] In this technical solution, by setting up structures such as seals, the controller is placed in a container with good sealing performance. However, after long-term use, the PCB board in the controller will generate a lot of heat, and the sealed shell is not conducive to the heat dissipation of the controller, so further improvements can be made. Summary of the Invention

[0005] In order to solve the problems existing in the background art, this utility model proposes an electric vehicle heat pump air conditioning controller.

[0006] An electric vehicle heat pump air conditioning controller includes a lower support groove and an upper cover. The lower support groove and the upper cover are fixed together by screws. A PCB board is fixedly installed in the lower half of the lower support groove by screws. A support ring is fixedly installed in the middle of the side wall of the lower support groove. A heat dissipation grille is placed on the top of the support ring. An air inlet is provided through the upper half of the lower support groove and communicates with the heat dissipation grille. A reinforcing component is provided at the center of the upper cover and is attached to the top of the heat dissipation grille.

[0007] Based on the above, four sets of protruding pillars are fixedly installed on the bottom wall of the lower support groove, and clamping pieces are fixedly installed on the top of the protruding pillars. The clamping pieces are L-shaped, and the four corners of the PCB board are fixed to the top of the four sets of protruding pillars by screws. The clamping pieces are attached to the side of the corners of the PCB board. A terminal interface is fixedly installed at the bottom of the PCB board, and an embedded tube is fixedly installed through the bottom of the lower support groove. The terminal interface passes through the embedded tube.

[0008] Based on the above, a rubber tube is inserted inside the insert tube, and both ends of the rubber tube are integrally formed with annular flanges. The two annular flanges are clamped on both ends of the insert tube, and the terminal interface is inserted inside the rubber tube.

[0009] Based on the above, two lugs are fixedly installed on the top of the upper cover, and an installation groove is provided through the top of the lugs.

[0010] Based on the above, a rubber ring is fixedly installed on the top of the support ring, the heat dissipation grille includes a heat-conducting copper plate, the heat-conducting copper plate is attached to the top of the rubber ring, heat dissipation fins are fixedly arranged on the top of the heat-conducting copper plate, a heat dissipation channel is formed between two adjacent heat dissipation fins, the heat dissipation channel is connected to the air inlet, an extrusion cover is attached to the top of the heat-conducting copper plate, and flow guides are opened through the left and right sides of the extrusion cover, the flow guides are connected to the heat dissipation channel.

[0011] Based on the above, the reinforcement component includes a receiving cylinder fixedly installed at the center of the upper cover, a threaded hole is opened through the center of the receiving cylinder, an adjusting stud is threadedly connected in the threaded hole, a pressure plate is fixedly installed at the bottom end of the adjusting stud, and the pressure plate is attached to the top of the heat dissipation grille.

[0012] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model forms a sealed storage cavity in the lower half of the lower support groove through a heat dissipation grille, so that the PCB board is in a sealed environment. At the same time, when air passes through the air inlet and the heat dissipation channel inside the heat dissipation grille, it carries away the heat of the heat-conducting copper plate and heat dissipation fins, thereby dissipating heat from the storage cavity. It has the advantages of sealing and storing the PCB board while ensuring the heat dissipation effect of the PCB board. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of the main cross-sectional structure of this utility model.

[0015] Figure 3 This is a three-dimensional exploded structural diagram of the present invention.

[0016] Figure 4This is a three-dimensional structural diagram of the heat dissipation grille and reinforcement components of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 100, lower support groove; 200, upper cover; 300, PCB board; 400, support ring; 500, heat dissipation grille; 600, air inlet; 700, reinforcement component;

[0018] 101. Protruding post; 102. Clamping piece; 103. Insert tube; 104. Rubber tube; 105. Annular flange; 201. Lug; 202. Mounting groove; 301. Terminal interface; 401. Rubber ring;

[0019] 501, Thermally conductive copper plate; 502, Heat dissipation fins; 503, Extrusion cover; 504, Flow guide; 701, Receiving cylinder; 702, Threaded hole; 703, Adjusting stud; 704, Pressure plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-4 As shown, an electric vehicle heat pump air conditioning controller includes a lower bracket 100 and an upper cover 200, which are fixed together by screws. Two lugs 201 are fixedly installed on the top of the upper cover 200, and mounting grooves 202 are formed through the top of each lug. The lugs 201 are mounted on the vehicle frame by screws passing through mounting grooves 202 and pre-drilled mounting holes on the frame. A PCB board 300 is fixedly installed in the lower half of the lower bracket 100 by screws. A retaining ring 400 is fixedly installed in the middle of the side wall of the lower bracket 100, and a heat dissipation grille 500 is placed on top of the retaining ring 400. The heat dissipation grille 500 divides the lower bracket 100, forming a sealed storage cavity in the lower half of the lower bracket 100. The PCB board 300 is placed inside the storage cavity, ensuring a good seal.

[0022] An air inlet 600 is provided through the upper half of the lower support groove 100, and the air inlet 600 is connected to the heat dissipation grille 500. Airflow passes through the air inlet 600 and the heat dissipation grille 500, cooling the air inside the storage cavity and consequently the PCB board 300. A reinforcing component 700 is provided at the center of the upper cover 200, and the reinforcing component 700 is attached to the top of the heat dissipation grille 500. The reinforcing component 700 allows adjustment of the compressive force between the heat dissipation grille 500 and the support ring 400, thus adjusting the fixation effect of the heat dissipation grille 500.

[0023] In use, four sets of protruding posts 101 are fixedly installed on the bottom wall of the lower support 100. Clamping pieces 102, L-shaped, are fixedly installed at the top of each protruding post 101. The four corners of the PCB board 300 are fixed to the tops of the four sets of protruding posts 101 with screws, and the clamping pieces 102 fit against the corner sides of the PCB board 300. This allows the PCB board 300 to be suspended and fixed within the lower half of the lower support 100, and the clamping pieces 102 provide side positioning of the corners of the PCB board 300, facilitating its installation. A terminal interface 301 is fixedly installed at the bottom of the PCB board 300, and a through-tube 103 is fixedly installed through the bottom of the lower support 100, through which the terminal interface 301 passes. This facilitates connection between the PCB board 300 and the wire harness terminals.

[0024] In practice, a rubber tube 104 is inserted inside the insert 103. Both ends of the rubber tube 104 have integrally formed annular flanges 105, which clamp the ends of the insert 103. The terminal interface 301 is inserted inside the rubber tube 104. The annular flanges 105 prevent the rubber tube 104 from detaching from the insert 103. Furthermore, the rubber tube 104, the insert 103, and the terminal interface 301 are interference-fitted, and the rubber tube 104 seals the gap between the insert 103 and the terminal interface 301.

[0025] Specifically, a rubber ring 401 is fixedly installed on the top of the support ring 400. The heat dissipation grille 500 includes a heat-conducting copper plate 501, which is attached to the top of the rubber ring 401, sealing the gap between the heat-conducting copper plate 501 and the support ring 400. Heat dissipation fins 502 are fixedly arranged on the top of the heat-conducting copper plate 501, forming a heat dissipation channel between adjacent fins 502. This channel communicates with the air inlet 600. A compression cover 503 is attached to the top of the heat-conducting copper plate 501, with guide ports 504 extending through both sides of the compression cover 503, communicating with the heat dissipation channel. Pressure is applied to the compression cover 503 by the reinforcing component 700, thus pressing the heat-conducting copper plate 501 tightly against the top of the rubber ring 401, preventing gaps between the heat-conducting copper plate 501 and the rubber ring 401. The pressure shield 503 presses downwards from the edge of the heat-conducting copper plate 501, further ensuring a tight fit between the heat-conducting copper plate 501 and the rubber ring 401. As air passes through the heat dissipation channel, it carries away heat from the heat-conducting copper plate 501 and the heat dissipation fins 502, thereby dissipating heat from the air in the lower half of the storage cavity of the lower tray 100. This achieves both a sealing effect on the PCB board 300 and stable heat dissipation for the PCB board 300.

[0026] In practice, the reinforcement component 700 includes a receiving cylinder 701 fixedly installed at the center of the upper cover 200. A threaded hole 702 is formed through the center of the receiving cylinder 701, and an adjusting stud 703 is threaded into the threaded hole 702. A pressure plate 704 is fixedly installed at the bottom end of the adjusting stud 703, and the pressure plate 704 is fitted against the top of the heat dissipation grille 500. The threaded hole 702 accommodates the adjusting stud 703, preventing it from protruding from the top of the upper cover 200. By turning the adjusting stud 703, the pressure plate 704 moves downward, compressing the cover 503 downward.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric vehicle heat pump air conditioning controller, characterized by: The device includes a lower support groove (100) and an upper cover (200), which are fixed together by screws. A PCB board (300) is fixedly installed in the lower half of the lower support groove (100) by screws. A support ring (400) is fixedly installed in the middle of the side wall of the lower support groove (100). A heat dissipation grille (500) is placed on the top of the support ring (400). An air inlet (600) is provided through the upper half of the lower support groove (100) and is connected to the heat dissipation grille (500). A reinforcing component (700) is provided at the center of the upper cover (200) and is attached to the top of the heat dissipation grille (500).

2. The electric vehicle heat pump air conditioner controller of claim 1, wherein: Four sets of protruding posts (101) are fixedly installed on the bottom wall of the lower support groove (100). A clamping piece (102) is fixedly installed on the top of the protruding post (101). The clamping piece (102) is L-shaped. The four corners of the PCB board (300) are fixed to the top of the four sets of protruding posts (101) by screws. The clamping piece (102) is attached to the side of the corner of the PCB board (300). A terminal interface (301) is fixedly installed at the bottom of the PCB board (300), and an embedded tube (103) is fixedly installed through the bottom of the lower bracket (100), with the terminal interface (301) passing through the embedded tube (103).

3. The electric vehicle heat pump air conditioner controller of claim 2, wherein: A rubber tube (104) is inserted inside the insert tube (103). Both ends of the rubber tube (104) are integrally formed with annular flanges (105). The two annular flanges (105) are clamped on both ends of the insert tube (103). The terminal interface (301) is inserted inside the rubber tube (104).

4. The electric vehicle heat pump air conditioner controller of claim 1, wherein: The top of the cover (200) has two lugs (201) fixedly installed, and the top of the lugs (201) has a through-hole (202).

5. The electric vehicle heat pump air conditioner controller of claim 1, wherein: A rubber ring (401) is fixedly installed on the top of the support ring (400). The heat dissipation grille (500) includes a heat-conducting copper plate (501). The heat-conducting copper plate (501) is attached to the top of the rubber ring (401). Heat dissipation fins (502) are fixedly arranged on the top of the heat-conducting copper plate (501). A heat dissipation channel is formed between two adjacent heat dissipation fins (502). The heat dissipation channel is connected to the air inlet (600). An extrusion cover (503) is attached to the top of the heat-conducting copper plate (501). A guide port (504) is opened through the left and right sides of the extrusion cover (503). The guide port (504) is connected to the heat dissipation channel.

6. The electric vehicle heat pump air conditioner controller of claim 1, wherein: The reinforcement component (700) includes a receiving cylinder (701) fixedly installed at the center of the upper cover (200). A threaded hole (702) is provided through the center of the receiving cylinder (701). An adjusting stud (703) is threadedly connected to the threaded hole (702). A pressure plate (704) is fixedly installed at the bottom end of the adjusting stud (703). The pressure plate (704) is attached to the top of the heat dissipation grille (500).

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